Heavenly Stems & Earthly Branches

One sequence system, several uses

The two sequences and their pairing

The ten stems are Jia, Yi, Bing, Ding, Wu, Ji, Geng, Xin, Ren, Gui. The twelve branches are Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai. A designation places the stem first and the branch second: Jia Zi, pronounced jiǎ zǐ, is the standard order, not Zi Jia.

After Gui, the stem sequence returns to Jia; after Hai, the branch sequence returns to Zi. These restarts need not happen together. Gui You is followed by Jia Xu, then Yi Hai and Bing Zi. The complete sequence can be checked against the Hong Kong Observatory's table.

Ganzhi, the zodiac, Wuxing and Bazi are not interchangeable names. Ganzhi supplies the ordered symbols; the zodiac associates an animal with each branch; Wuxing assigns traditional phase classifications; Bazi uses four pairs for year, month, day and hour. Knowing that a year is a Dragon year identifies its Chen branch, but neither its stem nor a person's full Bazi chart.

What the historical evidence establishes

The Central Weather Administration's explanation of the cycle describes a complete Ganzhi day-counting system in Shang oracle-bone records. The transmitted Mu Shi chapter of the Shang Shu also uses Jia Zi to identify a day. These sources establish early day designation; they do not identify a securely proven single inventor or invention year.

Year, month, day and hour applications should not be assumed to have appeared together. Evidence for Shang day counting is not evidence that Shang Bazi calculations already matched today's four-pillar methods. Later texts such as Wu Xing Da Yi recount a traditional origin story involving Da Nao. An origin narrative and an excavated inscription belong to different evidential categories.

The animal correspondences have their own history. The Hong Kong Observatory's zodiac page states that zodiac year designation was already used in the first century CE and lists the animal–branch associations. It does not claim that the Ganzhi sequences were originally derived from twelve animals.

Ten stems and twelve branches, individually explained

The yin–yang, phase, direction and imagery below describe traditional classifications. Jia, Bing, Wu, Geng and Ren are yang stems; Yi, Ding, Ji, Xin and Gui are yin stems. Zi, Yin, Chen, Wu, Shen and Xu are yang branches; the remaining six branches are yin. Polarity does not measure gender, goodness or personal ability. Trees, lamps, stars and rivers are explanatory metaphors, not findings about personality, occupation or real outcomes. Consult Wu Xing Da Yi, volume 2 for phase and seasonal correspondences and San Ming Tong Hui, volume 2 for stem polarity and imagery.

How to read the branch entries

The following entries state this guide's Ziping hidden-stem membership table, placing the principal stem first without assigning percentages to the remaining order. The members agree with the hidden-stem verse in this electronic Yuan Hai Zi Ping. That page carries a source-verification warning, however, and cannot alone establish the exact wording of a particular historical edition. The four Earth branches can also be cross-checked against the mixed-qi discussion in San Ming Tong Hui, Siku Quanshu version, volume 5. The complete table here is an explicit teaching convention, not a claim that every historical version agrees.

Traditional allocations of ruling qi to days within a month, sometimes discussed as Renyuan Sishi, are a separate matter. Finding a stem in such a monthly allocation does not automatically add it to a hidden-stem membership list.

The time ranges use the Observatory's usual modern clock correspondences. Include the start and exclude the end of each range. Seasonal and directional associations belong to a traditional Northern Hemisphere calendrical framework; they do not describe the actual weather everywhere on Earth.

The sexagenary cycle: why the return takes sixty steps

Example 1: from Jia Zi to Jia Xu, then back to Jia Zi

Start with Jia and Zi together. One step gives Yi Chou; nine steps give Gui You. One more step returns the stem to Jia but takes the branch to Xu, giving Jia Xu. Stems return every 10 steps and branches every 12. Their first shared return takes 60 steps: lcm(10, 12) = 60.

This explains invalid pairs. Jia always meets an odd-position branch, never the even-position Chou. Multiplying 10 by 12 gives 120 arbitrary pairings, but arbitrary pairing is not the rule of this sequence. Both positions advance simultaneously. With traditional polarity labels applied, this becomes yang stem with yang branch and yin stem with yin branch.

Six xun and their two unoccupied branches

A xun contains ten pairs, starting with a Jia stem and continuing through Gui. Because there are twelve branches, only ten appear within any one xun. Its two remaining branches are the unoccupied or void branches. This is first a reproducible sequence structure. Divinatory interpretations of Xunkong or Kongwang add a separate layer; two unused positions do not establish that an undertaking will fail.

For example, Bing Yin belongs to the Jia Zi xun, whose void branches are Xu and Hai. If a tool labels Xu void, ask which pillar's xun supplies the reference. Different applications can use different references. Wu Xing Da Yi, volume 1, on stem and branch numbers connects the ten stems and the xun; the table above can also be recomputed directly from the cycle.

Ordinary phase attributes and Nayin answer different questions

Jia Zi carries at least three different phase-related fields. Jia is Wood; Zi's principal phase is Water; and Jia Zi shares the Nayin label Haizhong Jin, Metal in the Sea, with Yi Chou. The first two describe individual symbols, while Nayin classifies paired designations. Before asking what phase Jia Zi is, specify which field you mean.

The sixty pairs form thirty two-pair Nayin groups. See Nayin Wuxing for their names and imagery. Nayin does not replace the individual stem and branch phases when deriving Ten Gods relationships. Historical explanations also involve musical pitches and numbers, as in Wu Xing Da Yi, volume 1, on Nayin numbers; these are not modern physical measurements.

Year, month, day and hour: boundaries before calculations

The same sixty labels can identify different time units. Year designations advance by years; day designations advance by days. A sexagenary cycle does not always mean sixty years. Below, lunar-calendar years use a lunar New Year boundary; Bazi year and month pillars use the stated Ziping solar-term convention, with Lichun starting the year and twelve jie instants starting the months. Hour pillars additionally require explicit day-boundary and time-basis settings.

Quick reference: year, month, day and hour boundaries

These rules distinguish calendar conventions from this site's BaZi settings. Before comparing tools, align the Gregorian date, clock time, UTC offset and solar-time setting. Apply the declared time convention consistently.

See the Hong Kong Observatory sources below for calendar years and solar terms. The midnight day boundary and late-Zi hour-stem rule describe this site's charting convention. Check the correction terms in the solar-time tool and worked examples.

Example 2: between Lichun and Lunar New Year in 2018

Consider February 10, 2018, at 12:00 in Hong Kong/Beijing standard time, without an apparent-solar-time correction. Lichun fell on February 4 that year; the first day of the first lunar month was February 16. The Observatory's 2018 daily conversion table identifies February 10 as day 25 of lunar month 12.

Two year designations and two month descriptions coexist because they answer different questions. In What Year Is It Today?, the Observatory explicitly states its midnight lunar New Year boundary in Hong Kong standard time, while noting that some divinatory practices use Lichun. Apply the boundary to the actual date or instant instead of assigning every day in Gregorian 2018 to one lunar-calendar year.

Solar-term months and lunar months have different boundaries

Lunar months start on the day of a new moon and usually contain 29 or 30 days. The 24 solar terms divide solar longitude into 15-degree intervals. This guide's solar-term months are the twelve intervals below. Each includes its starting instant and ends when the next starts; neither a Gregorian month opening nor lunar day 1 substitutes for that instant.

Each interval also contains a zhongqi, the intervening solar term: Yushui within Yin month, for example, and Chunfen within Mao month. The convention here changes the month at the jie, not the intervening zhongqi. The branch and seasonal discussions in San Ming Tong Hui, volume 2 provide traditional context; use astronomical data for modern exact transition times, not an ancient allocation of days within a month.

Example 3: immediately around a transition. Let T be a verified Jingzhe instant for a particular year and time zone. One minute before T remains Yin month; at T and afterwards, Mao month applies. If that year's Yin month is Jia Yin, the following month is Yi Mao even if lunar day 1 has not arrived. T represents an input that must be checked, not an invented fixed Gregorian clock time.

A leap lunar month does not create a thirteenth branch. Modern intercalation also considers the winter-solstice month and the number of months between successive winter-solstice months. “No zhongqi” alone is not a sufficient rule in every context. See the Central Weather Administration's explanation of leap-month placement.

Five Tigers: derive a month stem from a year stem

First establish the year stem and month branch under the selected boundary convention. The Five Tigers rule then supplies the month stem; it does not calculate Lichun. The table agrees with the Observatory's year–month stem table. Its traditional derivation verse appears in San Ming Tong Hui, volume 2, on deriving months and hours.

Example 4: Chen month in a Ji year. Ji belongs to the Jia–Ji group, so start Yin month at Bing Yin. Advance to Ding Mao, then Wu Chen. The answer is Wu Chen. Do not start counting stems from Jia merely because Chen is branch number five: this method begins with the Yin month, whose starting stem depends on the year stem.

Day designations continue across months

The day count runs continuously around the sixty-pair cycle. If a day is established as Gui Hai, the next day is Jia Zi, regardless of a lunar-month, Gregorian-month or year boundary. Adding Gregorian year, month and day numbers and taking a final digit is not a reliable day-pillar method.

Example 5: crossing civil midnight. Suppose a civil date has been established as Yi You, and the chosen day-pillar boundary is 00:00. At 23:59 its day pillar remains Yi You; at 00:00 the next date becomes Bing Xu. This example starts from a known designation to demonstrate sequence continuity and a boundary. It is not a calendar for converting an arbitrary Gregorian date.

Five Rats and late Zi: separate the day pillar from the hour stem

Five Rats derives the Zi-hour stem from the selected day stem, then advances through the hour branches. It neither establishes the day's stem nor chooses a late-Zi convention on the reader's behalf.

Example 6: Wu hour on a Gui day. The Wu–Gui group starts at Ren Zi. Continue through Gui Chou, Jia Yin, Yi Mao, Bing Chen and Ding Si to Wu Wu. The first Wu is the hour stem and the second is the hour branch. Identify the required branch, then advance six times from Zi; do not treat the clock number 12 in 12:00 as a stem index.

Example 7: why 23:30 can produce different pairs. Suppose the civil day is Yi You, the following day is Bing Xu and the hour branch is Zi. Two choices still matter: whether the day pillar changes at 23:00 or 00:00, and whether the hour stem uses the current or following day's stem.

The third row describes this site's current Bazi dependency setting. These rows distinguish rule combinations; they are not an exhaustive taxonomy of every school. Saying that late Zi does not change the day is insufficient without also stating the day stem used for the hour. The third result is not, on its own, an error in Five Rats.

Example 8: apparent solar time can change the hour branch

Civil standard time follows a time zone. Local mean solar time adds a longitude correction; local apparent solar time also adds the equation of time. Here the sign convention is explicitly equation of time = apparent solar time minus mean solar time, so apparent solar time = standard time + longitude correction + equation of time. One degree of longitude corresponds to about four minutes: add eastward, subtract westward. The Central Weather Administration's time classifications explain the concepts. Its equation-of-time page uses the opposite difference sign; check the definition before transferring a numerical value between sources.

For a hypothetical arithmetic exercise, assume no daylight saving, standard time 09:10, a standard meridian of 120°E, a location at 116°E and an equation of time of −5 minutes under the definition above. The longitude correction is −16 minutes, giving local mean solar time 08:54. Subtract another five minutes for apparent solar time 08:49. The civil clock corresponds to Si hour; the corrected apparent solar time corresponds to Chen hour.

The −5 minutes is an exercise input, not an observed value for a specified birthday. A real conversion needs the date, location, historical time zone, daylight-saving status and that date's equation of time, with any date crossing recorded. Convert daylight-saving clock time back to standard time first; do not subtract the same offset twice.

Relationships: identify the structure, then its conditions

Generation, control and the Ten Gods need a reference

The traditional generating cycle is Wood → Fire → Earth → Metal → Water → Wood. The controlling cycle is Wood → Earth → Water → Fire → Metal → Wood. These relations are recorded in the generation and control discussions of Wu Xing Da Yi, volume 2. The everyday analogies used to explain them belong to that classification system, not to a universal modern chemical reaction model.

The Ten Gods, or Shishen, then select the day stem as the reference self and distinguish both phase relation and polarity. This guide uses the common Ziping names below. Older texts also use names such as Daoshi, Xiao and Baicai, with context affecting their meaning. The opening discussion of relationship names and the individual finance, officer, resource and output chapters in San Ming Tong Hui, Siku Quanshu version, volume 5 provide day-stem-based examples. This introductory table does not compress every historical qualification of those names into one rule.

Rizhu, or Day Master, names the role selected as the reference. Bijian names a relationship to that reference. A chart may therefore label the day-stem position Day Master and another occurrence of the same stem Companion. Words such as wealth, officer and killings are technical labels here, not verified financial, career or harm events.

Five stem combinations: pairing and transformation are separate

The pairings and transformation directions appear in the separate stem-combination and transformation chapters of San Ming Tong Hui, volume 2. The separation matters: identifying members is one operation, while transformation adds seasonal and contextual conditions. The diagram here records a combination; it does not turn every Wood and Earth attribute into Earth merely because Jia and Ji appear together.

Historical marriage analogies explain these relations within their period's symbolism; they do not establish present-day romantic compatibility. Some systems also list Jia–Geng, Yi–Xin, Bing–Ren and Ding–Gui as stem clashes. The term Chongpo has a broader scope in Wu Xing Da Yi, so a four-pair stem-clash definition needs an explicit convention rather than an assertion that every classical text uses it.

Liuhe: six branch combinations

The six pairs are Zi–Chou, Yin–Hai, Mao–Xu, Chen–You, Si–Shen and Wu–Wei. They cover all twelve branches, each with one partner in this table. Cross-check the members in the branch-combination chapter of San Ming Tong Hui, volume 2 and the combination discussion in Wu Xing Da Yi, volume 2.

Recognizing Zi–Chou requires checking two members. Discussing a transformation phase, whether transformation occurs, priority over another relation or the whole chart's interpretation requires further rules from a specified tradition. This guide does not present one Liuhe transformation table as universal, or translate combination into a claim about naturally compatible zodiac partners.

Liuchong: six opposite positions on the branch circle

The six clash pairs are Zi–Wu, Chou–Wei, Yin–Shen, Mao–You, Chen–Xu and Si–Hai. On a circle with twelve equally spaced branches, the members are six steps apart. The traditional expression that a branch clashes with the seventh position counts the starting branch as position one; it is consistent with a six-step separation.

The pair table appears in the Chongpo chapter of Wu Xing Da Yi, volume 2. Circular geometry helps remember the members; it is not evidence of real-world causation. A relation diagram does not establish the occurrence or probability of a job loss, relationship separation or illness.

Sanhe, partial trines and Gong: state which member is missing

The Sanhe chapter of San Ming Tong Hui explains the three positions through growth, peak and storage, and warns against treating a missing member as a complete transformed group. A group name does not rewrite every member's principal phase. Even complete membership is separate from the additional transformation conditions used by a tradition.

For this guide's teaching terminology, two members including the peak branch form a partial trine, or Banhe: Shen–Zi or Zi–Chen, for example. Growth and storage members without the peak are called Gong: Shen–Chen framing the absent Zi. Other authors may use the terms differently. The diagram shows all three members of a full Sanhe group; naming Shen–Chen as Gong does not insert an actual Zi into the four pillars.

Sanhui: three successive branches of a season

Here Sanhui, or seasonal assembly, means Yin–Mao–Chen for eastern Wood, Si–Wu–Wei for southern Fire, Shen–You–Xu for western Metal, and Hai–Zi–Chou for northern Water. Each collects three successive seasonal branches. The directional memberships can be checked in the mixed-direction discussion of Wu Xing Da Yi, volume 2.

Yin–Mao–Chen and Hai–Mao–Wei both have a Wood association, but the first is a spring-season sequence and the second a growth–peak–storage trine. They are not interchangeable. Chen retains its principal Earth phase while belonging to the eastern seasonal group. A line joining three members displays a correspondence; it does not assert that every occurrence automatically transforms into one phase.

Liuhai: six harm pairs, checked through combinations and clashes

The six pairs are Zi–Wei, Chou–Wu, Yin–Si, Mao–Chen, Shen–Hai and You–Xu. They appear in the harm discussions of Wu Xing Da Yi and San Ming Tong Hui. Those discussions also explain members through combination and clash partners: Zi combines with Chou while Wei clashes with Chou, providing one memory path to Zi–Wei harm.

This explanation does not establish that people with the corresponding year animals will harm each other. Harm is a traditional relation name; real interpersonal judgments need actual behavior. A branch can participate in several kinds of relation, so one harm line should not replace the rest of the chart's structure.

Po: specify which text's meaning of break is intended

The term break needs especially careful attribution. In its Chongpo chapter, Wu Xing Da Yi, volume 2 discusses opposing stems and branches; its branch pairs match the six clashes. This is not the separate six-break table often found in modern reference lists.

The Posha passage reproduced in Gu Jin Tu Shu Ji Cheng, Arts section, volume 601 lists Mao–Wu, Chou–Chen, Zi–You and Wei–Xu, while excluding the four seasonal-opening branches from that list. This guide's break diagram displays only those four Posha pairs. A generic appeal to ancient rules cannot validate every modern six-break table; nor is this four-pair table presented as the one universal definition of six breaks.

Xing: groups, pairs and self-punishment

Members and directions can be checked against the punishment chapters of Wu Xing Da Yi, volume 2 and San Ming Tong Hui.

Traditions differ over when to apply a punishment interpretation, whether full group membership is needed and what additional conditions matter. This guide lists structures without a two-symbol disaster trigger. San Ming Tong Hui itself warns against treating every occurrence of Xing as unfavorable; a relation name and a concrete judgment must be read separately even within historical texts.

Twelve stages: whose position is being described?

The twelve names run Changsheng, Muyu, Guandai, Linguan, Diwang, Shuai, Bing, Si, Mu, Jue, Tai and Yang, then repeat. They borrow life-process imagery: growth, bathing, dressing, office, peak, decline, sickness, death, tomb, extinction, gestation and nurturing. A chart label is not a medical or lifespan finding. The twelve-palace discussion in San Ming Tong Hui, volume 2 lists the stages and cautions against reading growth and peak as invariably favorable, or death and extinction as invariably unfavorable.

The Twelve Life Stages entry carries the complete ten-stem table, the source texts for both direction conventions and the exact scope of their disagreement, the four classical arrangements for Earth, and a comparison of how BaZi, Zi Wei, Liu Yao and Qi Men each start the sequence.

Application requires a stem reference and a direction rule. The text places Jia's Changsheng at Hai, Bing's at Yin, Geng's at Si and Ren's at Shen; yin stems use different starts and direction. Earth also has differing arrangements: the stem discussion in this text follows Bing for Wu and Ding for Ji. Alternating between a five-phase table and a ten-stem polarity table without stating the switch will not give consistently defined results.

Applications, exercises and further reading

How different systems use the same symbols

These are reading entry points, not replacements for each system's own rules. The shared habit is to identify a symbol's position and reference, then determine whether the current discussion concerns calendars, traditional classification or a divinatory procedure.

Reading the 2018 example from inputs to limits

Return to February 10, 2018, at 12:00. First specify Hong Kong/Beijing standard time without an apparent-solar-time correction. The official calendar gives lunar month 12, day 25. Under the lunar New Year boundary, it remains Ding You year. Under this guide's Bazi year and month convention, Lichun has passed, so the year pillar is Wu Xu and the month branch Yin. Five Tigers starts a Wu year's Yin month at Jia, producing Jia Yin.

The ordinary clock table places 12:00 in Wu hour. This does not yet justify deriving the hour stem from the year stem Wu: Five Rats needs a checked day stem. Recognizing that missing input is part of a complete explanation. A reader should know what the available evidence establishes and which input is still required to finish the four pillars.

Three checks for keeping the layers separate

1. What follows Gui You? Jia Xu. The stem returns to Jia while the branch advances from You to Xu; this is not their shared restart.
2. Should Zi's yang label or hidden Gui's yin label be changed? Neither. They classify different objects. Identify the field's referent first.
3. Can Shen–Chen supply an actual Zi to complete the Water trine? No. This guide calls the missing-peak structure Gong, but a relationship name cannot add a symbol that is not present.

For memorization, learn the two sequences first, then the five stem-phase pairs and the six opposing branch pairs. Use those coordinates to look up combinations and trines. Five Tigers starts Yin month with Bing, Wu, Geng, Ren or Jia for the five year-stem groups in order; Five Rats starts Zi hour with Jia, Bing, Wu, Geng or Ren for the corresponding day-stem groups. Run a full example after learning the starting names so that both the starting point and the step count are clear.

Sources: separate recorded rules from predictive statements

Official astronomical material is suitable for sequences, solar terms and Gregorian–lunar date conversion. Historical texts establish traditional classifications and a particular text's terminology. The linked Wu Xing Da Yi, San Ming Tong Hui and Yuan Hai Zi Ping pages are identifiable electronic texts with named sections, not a claim that every underlying scanned edition has been fully collated. Similar-looking characters, alternative names and version differences still require context; the hidden-stem section specifically notes its source limitation.

Historical works also contain social hierarchies, personality claims and predictions about health or fortune. Citing a pair table does not endorse those statements as modern facts. For a personal chart, record the time, place and chosen conventions. For a term, return to the relevant section and source. This September 8, 2026 edition concentrates on sequence structure, relationship definitions and time boundaries; later textual revisions should retain their evidence and explain what changed.

FAQ

What are the ten stems and twelve branches?

The stems are Jia, Yi, Bing, Ding, Wu, Ji, Geng, Xin, Ren and Gui. The branches are Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai. Each pair places its stem first.

Why are there sixty pairs rather than 120?

Both sequences advance one position at a time. The least common multiple of 10 and 12 is 60. Odd positions only meet odd positions and even positions only meet even positions, so Jia Chou and Yi Zi do not occur.

How do I pronounce Gui, Si and Xu?

Their tone-marked pinyin is guǐ, sì and xū. The stem Wu is wù, while the branch Wu is wǔ. Plain pinyin can conceal this distinction, so check whether a label denotes a stem or a branch.

Are Ganzhi and the animal zodiac the same thing?

No. Each zodiac animal corresponds to a branch. A year animal identifies the year branch but not its stem, and it cannot supply all four pairs of a Bazi chart.

Can a yin stem pair with a yang branch?

Not in the standard sixty-pair sequence. Alternating yin and yang labels stay aligned as the two sequences advance together. This is a rule about sequence positions, not a rule about people's genders.

Why does yang Zi contain yin Gui?

The branch's yin–yang label and its hidden stem's label describe different objects. Zi is a yang branch; the hidden-stem table lists Gui, a yin stem. Neither field needs to be changed.

Do hidden stems have universal percentages?

No universal percentages are assigned here. Membership, display order, seasonal day allocations and an application's numerical weights are different things. This guide lists members with the principal stem first.

Does the Ganzhi year change at Lunar New Year or Lichun?

State the purpose first. The Hong Kong Observatory changes the lunar-calendar year designation at midnight on the first day of the first lunar month, in Hong Kong standard time. The Ziping solar-term convention explained here changes the year pillar at Lichun.

Is Lichun always midnight on February 4?

No. Lichun is the instant at which the Sun's ecliptic longitude reaches 315 degrees. Check the year-specific date, time and time zone instead of substituting a fixed midnight.

Does a Bazi month change on the first lunar day?

Under this guide's Ziping convention, the month pillar changes at twelve jie boundaries, including Lichun and Jingzhe. A lunar month begins on its new-moon day, so these boundaries often differ.

Does a leap month add a thirteenth branch?

No. Intercalation belongs to the lunisolar calendar. The branch sequence still has twelve members, and a leap lunar month does not create an extra solar-term month.

Does the day cycle restart with Jia Zi every month?

No. Day designations continue through the sixty-pair cycle across month and year boundaries. Converting an arbitrary calendar date still requires a checked calendar or a validated algorithm with a reference date.

What hours does Zi cover?

The usual modern clock correspondence is 23:00 to 01:00. It spans civil midnight. The day-pillar boundary and the choice of day stem used to derive the hour stem must still be specified separately.

What do Five Tigers and Five Rats derive?

Five Tigers derives the Yin-month stem from the year stem. Five Rats derives the Zi-hour stem from the selected day stem. Neither method calculates solar-term instants or establishes the day's Ganzhi designation.

Is Beijing time the same as apparent solar time?

No. Beijing time is civil standard time. Local mean solar time requires a longitude correction; local apparent solar time also requires the equation of time. Historical daylight-saving adjustments must be handled without counting the same offset twice.

Is Jia Zi Wood, Water or Metal?

Jia is Wood, Zi's principal phase is Water, and the Jia Zi pair has the Nayin label Haizhong Jin, or Metal in the Sea. These are three different fields, not competing answers to one precisely defined question.

Does a stem combination automatically transform?

No. A pair table identifies members. Traditional transformation discussions add seasonal and contextual conditions. This guide does not automatically replace both original phases with the transformation phase.

How do Sanhe and Sanhui differ?

Sanhe groups, such as Shen–Zi–Chen, connect branches four positions apart. Sanhui groups, such as Yin–Mao–Chen, collect three successive seasonal branches. Their members and explanatory frameworks differ.

Do clashes, punishments, harms or breaks predict bad events?

No. These are traditional relation names. Identifying one does not establish a future illness, relationship outcome or lifespan. Even the word break has different meanings in different texts.

Is Ganzhi enough to interpret a whole chart?

It is a foundation for reading symbols. Each system also requires its own timing rules, reference points and interpretive conventions. First establish how a result was derived and what its labels refer to.

References

• Hong Kong Observatory: Heavenly Stems and Earthly Branches
• Central Weather Administration: the Ganzhi cycle
• Hong Kong Observatory: What Year Is It Today?
• Hong Kong Observatory: the 24 Solar Terms
• Hong Kong Observatory: 2018 Gregorian–lunar conversion table
• Wu Xing Da Yi, volume 1: names and numerical structures, electronic text
• Wu Xing Da Yi, volume 2: correspondences and relations, electronic text
• San Ming Tong Hui, volume 2: timing and relations, electronic text
• Yuan Hai Zi Ping: hidden-stem verse, electronic text with source warning
• San Ming Tong Hui, Siku Quanshu version, volume 5: relationship categories and mixed qi
• Gu Jin Tu Shu Ji Cheng, Arts section, volume 601: Posha, electronic text